We see this nigga Rell and he's flaggin us down
Then he walked up on the car, asked me and Pat "What's poppin?"
Then jumped in the backseat before I got the chance to lock it

from Talib Kweli (Ft. Consequence) – Engine Runnin Lyrics on Rap Genius

Meaning

While driving around Consequence and Pat see a guy they know named Rell. He flags the boys down and hops into the back seat of the car without even asking.

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